Baly, E. C. C. (Edward Charles Cyril), b. 1871 · London, Longmans, Green · leaf 340
ion.Iig. 126 shows the actualppearance of some of thef :inges. Evidently, now,tlie closer the two rays areI jgether in the spectrum,he higher will be the valueof kx at which the first co-incidence takes place, and,as we can make use ofvery high orders of inter-ference in this apparatus,very closely… … INTERFERENCE METHODS IN SPECTROSCOPY 323 Let us consider again the apparatus to be illuminated bytwo rays closely situated together, of wave-lengths A. and A, + e,and let A, the difference of path, = 2e; then the/th fringe of thefirst ray corresponds to A =/X, and the /th fringe of thesecond ray…
Spectrum analysis
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